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Aft _ 0 6 3 4 TOXICITY TO AQUATIC PLANTS TEST SUBSTANCE________________________________________________ Identity: A mixture containing perfluorooctanesulfonate, which may also be referred to as PFOS, FC-95 or as a component of FC-201AF. (1Octanesulfonic acid) (CAS # 2795-39-3).

ARSL6- 0723* ACUTE TOXICITY TO FISH (RAINBOW TROUT) TEST SUBSTANCE_______________________________________________ Identity: A mixture containing perfluorooctanesulfonate, which may also be referred to as PFOS, FC-95, or as a component of FC-203. (1Octanesulfonic acid) (CAS # 2795-39-3).

A fi. & Z 6 _ 0 7 t j - 2 A C U T E T O X IC IT Y TO FISH (M U M M ICH O G ) T E S T S U B S T A N C E _____________________________________________ Identity: A mixture containing perfluorooctanesulfonate; may also be referred to as PFO S, FC-95, or as a component of FC-203C and L-5440. (1-Octanesulfonic acid, 1,1,2,2,3,3,4,4,5,5,6,6,7,7,8,8,8-heptadecafluoro-, potassium salt, C A S # 2795-39-3) Rem arks: The 3M production lot number w as not noted.

_ 075S ACTIVATED SLUDGE RESPIRATION INHIBITION TEST TEST SUBSTANCE_______________________________________________ Identity: A mixture containing perfluorooctanesulfonate, which may also be referred to as PFOS, FC-95, or as a component of FC-203CE. (1Octanesulfonic acid) (CAS # 2795-39-3).

ACUTE TOXICITY TO FISH (FATHEAD MINNOW) TEST SUBSTANCE___________________________________________ Identity: A mixture containing perfluorooctanesulfonate, which may also be referred to as PFOS, FC-95, or as a component of FC-206C and 81-2/8. (1-Octanesulfonicadd, 1,1,2,2,3,3,4,4,5,5,6,6,7,7,8,8,8-heptadecafluoro-, potassium salt, CAS # 2795-39-3) Remarks: The 3M production lot number was not noted.

AA 6 - TSCA NCIC Notification Form for CBI Documents Docket Number: fl-'fi ____________ Document Control Number: ( Document Date: r ?

'rom 0#mfb j Reaiy an 10/04/2001 07 C2 PM rc a: Suoject Za*><J M Ruffc< Ag/DuPontigOuPont Rooeh F P'nchot/DEV'AE/D jPont@QuPont, M Ann Brici*y'ST8/0U3<i}DUP.

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AR226-2109 Test Results 'f's it'r.e i'.m v & i'A Industrial HygieneS*=KSS*ta':: ^.W.r^r^^S>"!

AR226-2192 Ta-Wei Fu 08/27/2001 11:34 PM To: Stephen J Gissy/AE/DuPont@DuPont, Oscar T Garza/AE/DuPorrt@DuPont, Fred M Lentz/SE/DuPont@DuPont, Robbin Banerjee/AE/DuPont@DuPont, Paul K Mathur/CL/DuPont@DuPont, David M Rurak/AE/DuPont@DuPont, Raymond C Butterworth/CL/DuPont@DuPont, John R Flynn/AE/DuPont@DuPont, Amy L Brown/AE/DuPont@DuPont, Thomas W Mahlberg/SE/DuPont@DuPont cc: Robert F Pinchot/DEV/AE/DuPont@DuPont, Chris E Shoop/AE/DuPont@DuPont, Roger J .

AR226-2196 From: Fred M Lentz on 08/28/2001 07:54 AM To: Ta-Wei Fu/SE/DuPont@DuPont cc: Stephen J Gissy/AE/DuPont@DuPont, Oscar T Garza/AE/BuPont@DuPont, Robbin Banerjee/AE/DuPont@DuPont, Paul K Mathur/CL/DuPont@DuPont, David M Rurak/AE/DuPont@DuPont, Raymond C Butterworth/CL/DuPont@DuPont, John R Flynn/AE/DuPont@DuPont, Amy L Brown/AE/DuPont@DuPont, Thomas W Mahlberg/SE/DuPont@DuPont, Robert F Pinchot/DEV/AE/DuPont@DuPont, Chris E Shoop/AE/DuPont@DuPont, Roger J Zipfel/AE/DuPont@DuPont, Alvin H Gibson_Jr/CL/DuPont@DuPont, Debbie J Mulrooney/AE/DuPont@DuPont, Kenneth P Kelch/AE/DuPont@DuPont Subject: Re: ACTION ITEMS FROM APFO DISPERSION MODELLING D Ta-W ei If you have not already done so, please take a moment to review these results with Ken Kelch.

*** y AR226-252 zoiozra

AR226-2556 June 23, 2000 Dr.